Book/Report

FZJ-2018-02267

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Anomalous impurity transport in plasmas

Rogister, A.FZJ* ; Hasselberg, G.FZJ*

1983
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/17968

Report No.: Juel-1846

Abstract: The transport of hith Z impurities resulting from Compton and induced scattering by drift waves is found to be comparable in magnitude with base ion and electron transport when the fluctuation spectrum is obtained from a recent theory of drift turbulence. The anomalous frictional flux is marginally subdominant whilst the diffusion flux is enhanced over the neoclassical value by a numerical factor which (i) agrees quantitatively with the results of impurity injection experiments, (ii) decreases with increasing base ion atomic mass, and (iii) is independent from the impurity charge to mass ratio. The theory further predicts a dramatic increase of the anomaly, also in agreement with experimental results, when the growth rate is enhanced within the heat pulse released by the sawtooth relaxations of the core.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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